Keep missing the point. Any tool used IS the best tool for the job until it runs and someone doesn't make a better app with a better tool. The guy is probably a JS dev and he made this as a low-impact side project. It's a really hard sell to dive into C++ or picking up some obscure framework with fraction of the community just for the sake of this (see "sad state of cross-platform gui frameworks").
It's like someone posts a phone video of a new rare animal species and you comment "A DSLR camera makes infinitely better video, it's much better suited for the job, we keep normalising bad mobile phone videos, people should use the right tool and carry a DSLR around".
